Electrode patch



FIG. 1 is a front view of the electrode patch;

FIG. 2 is a rear view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is end view thereof.

The broken lines are included for the purpose of illustrating a portion of the electrode patch that forms no part of the claimed design. 

The ornamental design for an electrode patch, as shown and described. 